Home / 81,330.09-122,000.84-25,162.80

Finding the Fourth Proportional to 81,330.09, 122,000.84 and 25,162.80

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Solution

The fourth proportional to 81,330.09, 122,000.84 and 25,162.80 is: 37,745.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,330.09 : 122,000.84 = 25,162.80 : x
  2. Step 2: Convert to fraction form
    81,330.09/122,000.84 = 25,162.80/x
  3. Step 3: Cross multiply
    81,330.09x = 122,000.84 × 25,162.80
  4. Step 4: Simplify right side
    81,330.09x = 3,069,882,610.94
  5. Step 5: Solve for x
    x = 3,069,882,610.94/81,330.09
  6. Step 6: Final answer
    x = 37,745.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.